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9f8e00890b
(store_inferior_registers): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * amd64bsd-nat.c (fetch_inferior_registers) (store_inferior_registers): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * armnbsd-nat.c: Update copyright year. (fetch_register, fetch_regs, fetch_fp_register, fetch_fp_regs) (store_register, store_regs, store_fp_register, store_fp_regs): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * hppabsd-nat.c (fetch_inferior_registers) (store_inferior_registers): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * i386bsd-nat.c (fetch_inferior_registers) (store_inferior_registers, i386bsd_dr_set, i386bsd_dr_get_status): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * m68kbsd-nat.c (fetch_inferior_registers) (store_inferior_registers): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * m88kbsd-nat.c (fetch_inferior_registers) (store_inferior_registers): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * mipsnbsd-nat.c: Update copyright year. (fetch_inferior_registers, store_inferior_registers): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * ns32knbsd-nat.c: Update copyright year. (fetch_inferior_registers, store_inferior_registers): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * ppcnbsd-nat.c (fetch_inferior_registers): (store_inferior_registers): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * ppcobsd-nat.c (fetch_inferior_registers): (store_inferior_registers): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * shnbsd-nat.c: Update copyright year. (fetch_inferior_registers, store_inferior_registers): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3. * vaxbsd-nat.c (fetch_inferior_registers) (store_inferior_registers): Replace PTRACE_ARG3_TYPE with PTRACE_TYPE_ARG3.
183 lines
5.3 KiB
C
183 lines
5.3 KiB
C
/* Native-dependent code for PowerPC's running NetBSD, for GDB.
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Copyright 2002, 2004 Free Software Foundation, Inc.
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Contributed by Wasabi Systems, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <machine/reg.h>
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#include <machine/frame.h>
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#include <machine/pcb.h>
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#include "defs.h"
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#include "inferior.h"
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#include "gdb_assert.h"
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#include "gdbcore.h"
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#include "regcache.h"
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#include "bsd-kvm.h"
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#include "ppc-tdep.h"
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#include "ppcnbsd-tdep.h"
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/* Returns true if PT_GETREGS fetches this register. */
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static int
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getregs_supplies (int regno)
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{
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struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
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return ((regno >= tdep->ppc_gp0_regnum
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&& regno < tdep->ppc_gp0_regnum + ppc_num_gprs)
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|| regno == tdep->ppc_lr_regnum
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|| regno == tdep->ppc_cr_regnum
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|| regno == tdep->ppc_xer_regnum
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|| regno == tdep->ppc_ctr_regnum
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|| regno == PC_REGNUM);
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}
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/* Like above, but for PT_GETFPREGS. */
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static int
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getfpregs_supplies (int regno)
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{
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struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
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/* FIXME: jimb/2004-05-05: Some PPC variants don't have floating
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point registers. Traditionally, GDB's register set has still
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listed the floating point registers for such machines, so this
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code is harmless. However, the new E500 port actually omits the
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floating point registers entirely from the register set --- they
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don't even have register numbers assigned to them.
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It's not clear to me how best to update this code, so this assert
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will alert the first person to encounter the NetBSD/E500
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combination to the problem. */
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gdb_assert (ppc_floating_point_unit_p (current_gdbarch));
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return ((regno >= tdep->ppc_fp0_regnum
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&& regno < tdep->ppc_fp0_regnum + ppc_num_fprs)
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|| regno == tdep->ppc_fpscr_regnum);
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}
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void
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fetch_inferior_registers (int regno)
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{
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if (regno == -1 || getregs_supplies (regno))
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{
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struct reg regs;
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if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name ("Couldn't get registers");
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ppcnbsd_supply_reg ((char *) ®s, regno);
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if (regno != -1)
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return;
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}
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if (regno == -1 || getfpregs_supplies (regno))
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{
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struct fpreg fpregs;
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if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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perror_with_name ("Couldn't get FP registers");
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ppcnbsd_supply_fpreg ((char *) &fpregs, regno);
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if (regno != -1)
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return;
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}
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}
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void
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store_inferior_registers (int regno)
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{
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if (regno == -1 || getregs_supplies (regno))
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{
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struct reg regs;
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if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name ("Couldn't get registers");
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ppcnbsd_fill_reg ((char *) ®s, regno);
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if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) ®s, 0) == -1)
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perror_with_name ("Couldn't write registers");
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if (regno != -1)
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return;
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}
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if (regno == -1 || getfpregs_supplies (regno))
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{
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struct fpreg fpregs;
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if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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perror_with_name ("Couldn't get FP registers");
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ppcnbsd_fill_fpreg ((char *) &fpregs, regno);
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if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
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(PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
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perror_with_name ("Couldn't set FP registers");
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}
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}
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static int
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ppcnbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
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{
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struct switchframe sf;
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struct callframe cf;
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struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
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int i;
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/* The stack pointer shouldn't be zero. */
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if (pcb->pcb_sp == 0)
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return 0;
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read_memory (pcb->pcb_sp, (char *) &sf, sizeof sf);
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regcache_raw_supply (regcache, tdep->ppc_cr_regnum, &sf.cr);
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regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 2, &sf.fixreg2);
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for (i = 0 ; i < 19 ; i++)
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regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 13 + i,
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&sf.fixreg[i]);
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read_memory(sf.sp, (char *)&cf, sizeof(cf));
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regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 30, &cf.r30);
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regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 31, &cf.r31);
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regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + 1, &cf.sp);
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read_memory(cf.sp, (char *)&cf, sizeof(cf));
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regcache_raw_supply (regcache, tdep->ppc_lr_regnum, &cf.lr);
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regcache_raw_supply (regcache, PC_REGNUM, &cf.lr);
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return 1;
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}
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/* Provide a prototype to silence -Wmissing-prototypes. */
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void _initialize_ppcnbsd_nat (void);
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void
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_initialize_ppcnbsd_nat (void)
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{
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/* Support debugging kernel virtual memory images. */
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bsd_kvm_add_target (ppcnbsd_supply_pcb);
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}
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